WO2018046137A1 - Hood for the closing body of a closure of a bulk material lock - Google Patents

Hood for the closing body of a closure of a bulk material lock Download PDF

Info

Publication number
WO2018046137A1
WO2018046137A1 PCT/EP2017/025236 EP2017025236W WO2018046137A1 WO 2018046137 A1 WO2018046137 A1 WO 2018046137A1 EP 2017025236 W EP2017025236 W EP 2017025236W WO 2018046137 A1 WO2018046137 A1 WO 2018046137A1
Authority
WO
WIPO (PCT)
Prior art keywords
closing body
bulk material
hood
closure
upper side
Prior art date
Application number
PCT/EP2017/025236
Other languages
French (fr)
Inventor
Ganesh Arumugam
Volker Deisinger
Frederic Judas
Michael Kress
Original Assignee
L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude filed Critical L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude
Publication of WO2018046137A1 publication Critical patent/WO2018046137A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/02—Fixed-bed gasification of lump fuel
    • C10J3/20—Apparatus; Plants
    • C10J3/30—Fuel charging devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
    • B01J8/003—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor in a downward flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/008—Details of the reactor or of the particulate material; Processes to increase or to retard the rate of reaction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/18—Bell-and-hopper arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00743—Feeding or discharging of solids
    • B01J2208/00752—Feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00743—Feeding or discharging of solids
    • B01J2208/00769—Details of feeding or discharging
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2200/00—Details of gasification apparatus
    • C10J2200/09—Mechanical details of gasifiers not otherwise provided for, e.g. sealing means
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2200/00—Details of gasification apparatus
    • C10J2200/15—Details of feeding means
    • C10J2200/156—Sluices, e.g. mechanical sluices for preventing escape of gas through the feed inlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2900/00—Special features of, or arrangements for fuel supplies
    • F23K2900/03001—Airlock sections in solid fuel supply lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/0025—Charging or loading melting furnaces with material in the solid state
    • F27D3/0032—Charging or loading melting furnaces with material in the solid state using an air-lock

Definitions

  • the invention relates to closures of bulk material locks.
  • the invention is intended to avoid disruption of the closing process and damage to the closure by bulk material getting between the closure seat and the closing body.
  • the invention is in- tended to counteract excessive wear on the sealing surfaces.
  • Closures for bulk material locks often comprise a seat having a circular opening rim and a disc-shaped closing body having a chamfered closing surface, wherein the opening rim and the base surface of the closing body are arranged horizontally. Furthermore, they comprise a mechanism which holds the closing body and can move it in a vertical direction, wherein the closing body is connected to the mechanism by a rod, chain or cable. By means of this mechanism, the closing body can close the opening of the bulk material lock. In this case, the chamfered closing surface thereof is pressed against the opening rim.
  • closure is also employed for the same purpose, i.e. for closing bulk material locks, one example thereof being shown in German Laid-Open Application DE 40 41 445 A1.
  • One significant difference between these two types of embodiment consists in the shape of the closing body. In the first case, this has the shape of a disc, the upper edge of which is chamfered to form an oblique closing surface.
  • the closing body is conical. This shape ensures that the lumps of fuel falling via the closing body as the lock is filled are not retained on the upper side of the closing body. This prevents lumps of fuel being deposited on the closing body, which could fall off due to shocks when the closure is closed and get between the seating edge and the closing surface of the closing body.
  • embodying the closing body as a cone is more complex in terms of design and more expensive.
  • Hood for covering the upper side of a disc-shaped closing body of a closure of a bulk material Sock against deposits of bulk material, wherein the hood is conical and wherein the base surface of the hood has the same size as the upper side of the closing body.
  • hood Covering the flat upper side of the disc-shaped closing body with a hood according to the invention prevents the deposition of lumps of fuel on the closing body.
  • the hood covers the flat locations of the upper side of the closing body and the fastening elements, rod or chain, which are present on the upper side of the closing body and by means of which the closing body is held and moved.
  • Already existing bulk material locks can be retrofitted in a simple manner with the hood according to the invention, thus reducing problems with sealing caused by unwanted deposits of bulk material on the flat surface of the disk-shaped closing body.
  • the hood can be manufactured from thin-walled material since it has merely to deflect the falling bulk material but does not absorb any mechanical forces caused by the pressing of the closing body into the seat of the closure. These are ab- sorbed exclusively by the closing body.
  • a preferred embodiment of the invention is characterized in that it is composed of an upper, conical, frustoconical or hemi-spherical part and a lower, cylindrical or frustoconi- cal part.
  • the shape of the hood can be matched to the respective space conditions without the formation on the hood surface of faces or edges on which deposits could occur.
  • Another preferred embodiment of the invention is characterized in that the hood is configured in such a way that the angle formed between the cone lateral surface thereof and the flat surface of the closing body is greater than or equal to the tipping angle of the bulk material tipped into the bulk material lock. This ensures that the slope of the cone or the hood lateral surface is large enough for lumps of bulk material to slip off.
  • the invention comprises a closure for a bulk material lock, comprising a seat having a circular opening rim and a disc-shaped closing body having a chamfered closing surface, wherein the upper side of the closing body is covered by means of a hood according to the invention.
  • the invention also relates to a bulk material lock for a fixed-bed pressure gasification reactor, which is equipped with a closure according to the invention.
  • the invention also relates to a method for retrofitting a closure of a bulk material lock, equipped with a disc-shaped closing body having a flat surface, which is character- ized in that the disc-shaped closing body having a flat surface is provided with a hood according to the invention.
  • a method for retrofitting a closure of a bulk material lock equipped with a disc-shaped closing body having a flat surface, which is character- ized in that the disc-shaped closing body having a flat surface is provided with a hood according to the invention.
  • FIG. 1 shows a longitudinal section through a closing body according to the invention having a conical hood
  • Fig. 2 shows a longitudinal section through a closing body according to the invention having a hood which comprises a conical upper part and a cylindrical lower part,
  • Fig. 3 shows a longitudinal section through a closing body according to the invention having a hood which comprises a conical upper and lower part with different slope angles of the lateral surface relative to the base surface.
  • Fig. 1 shows a disc-shaped closing body 1 having a chamfered closing surface 2 and a flat upper side 3.
  • the closing body 1 is connected to a rod 4, by means of which it is held and moved in a vertical direction.
  • the hood 5 completely covers the flat upper side 3 of the closing body 1 , ensuring that no bulk material deposits can form there.
  • the lat- eral surface 6 of the hood 5 forms the angle 7 with the flat upper side 3 of the closing body 1.
  • Fig. 2 shows a closing body according to Fig. 1 , but equipped with a hood which comprises an upper, conical part 6 and a lower, cylindrical part 8.
  • Fig. 3 shows a closing body according to Fig. 1 , but equipped with a hood which comprises a conical upper part 6 and lower part 9 with different slope angles of the respective lateral surface relative to the base surface.
  • the invention protects the closure of bulk material locks from damage due to trapped bulk material. This increases the service life of the closure and reduces the frequency of stoppages for repairs. The invention thus increases the economy of the reactor and production process associated therewith. The invention can therefore be applied to advan- tage industrially. List of reference signs

Abstract

Hood for covering the upper side of the disc-shaped closing body of a closure of a bulk material lock against deposits of bulk material.

Description

Hood for the closing body of a closure of a bulk material lock
Field of the invention
The invention relates to closures of bulk material locks. The invention is intended to avoid disruption of the closing process and damage to the closure by bulk material getting between the closure seat and the closing body. In particular, the invention is in- tended to counteract excessive wear on the sealing surfaces.
Prior art
Closures for bulk material locks often comprise a seat having a circular opening rim and a disc-shaped closing body having a chamfered closing surface, wherein the opening rim and the base surface of the closing body are arranged horizontally. Furthermore, they comprise a mechanism which holds the closing body and can move it in a vertical direction, wherein the closing body is connected to the mechanism by a rod, chain or cable. By means of this mechanism, the closing body can close the opening of the bulk material lock. In this case, the chamfered closing surface thereof is pressed against the opening rim. Bulk material locks having closures of this kind are often used to charge fixed-bed pressure gasification reactors, in which a solid, carbon-containing fuel, such as coal or coke, is gasified, using oxygen and steam, to form a synthetic gas consisting primarily of carbon monoxide and hydrogen. For further details of the process, attention is drawn to the relevant literature, cf. U!lmanns Encyclopedia of Industrial Chemistry, Sixth Edition, Vol. 15, page 367 ff.
One example of a closure corresponding to the field of the invention is shown in US application 2014/0191151 A1.
However, another type of closure is also employed for the same purpose, i.e. for closing bulk material locks, one example thereof being shown in German Laid-Open Application DE 40 41 445 A1. One significant difference between these two types of embodiment consists in the shape of the closing body. In the first case, this has the shape of a disc, the upper edge of which is chamfered to form an oblique closing surface.
In the second type of embodiment, the closing body is conical. This shape ensures that the lumps of fuel falling via the closing body as the lock is filled are not retained on the upper side of the closing body. This prevents lumps of fuel being deposited on the closing body, which could fall off due to shocks when the closure is closed and get between the seating edge and the closing surface of the closing body. However, embodying the closing body as a cone is more complex in terms of design and more expensive.
In contrast, the formation of fuel deposits in the case of a disc-shaped closing body cannot be excluded since the upper side thereof is flat. With this type of closing body, there is therefore the risk that lumps of fuel will get between the closure seat and the closing surface during the closing process and that there will be damage during this process, preventing gas-tight closure and thus leading to stoppages for repair of the gasification plant. It is the object of the invention to propose a device with which a closure having a discshaped closing body can be modified in such a way that the disadvantages described are avoided. Description of the invention
The object is achieved by a device according to Claim 1.
Device according to the invention:
Hood for covering the upper side of a disc-shaped closing body of a closure of a bulk material Sock against deposits of bulk material, wherein the hood is conical and wherein the base surface of the hood has the same size as the upper side of the closing body.
Covering the flat upper side of the disc-shaped closing body with a hood according to the invention prevents the deposition of lumps of fuel on the closing body. The hood covers the flat locations of the upper side of the closing body and the fastening elements, rod or chain, which are present on the upper side of the closing body and by means of which the closing body is held and moved. Already existing bulk material locks can be retrofitted in a simple manner with the hood according to the invention, thus reducing problems with sealing caused by unwanted deposits of bulk material on the flat surface of the disk-shaped closing body.
It is advantageous that the hood can be manufactured from thin-walled material since it has merely to deflect the falling bulk material but does not absorb any mechanical forces caused by the pressing of the closing body into the seat of the closure. These are ab- sorbed exclusively by the closing body.
Preferred embodiments of the invention
A preferred embodiment of the invention is characterized in that it is composed of an upper, conical, frustoconical or hemi-spherical part and a lower, cylindrical or frustoconi- cal part. In this way, the shape of the hood can be matched to the respective space conditions without the formation on the hood surface of faces or edges on which deposits could occur. Another preferred embodiment of the invention is characterized in that the hood is configured in such a way that the angle formed between the cone lateral surface thereof and the flat surface of the closing body is greater than or equal to the tipping angle of the bulk material tipped into the bulk material lock. This ensures that the slope of the cone or the hood lateral surface is large enough for lumps of bulk material to slip off. The bulk material angle must be determined experimentally for each bulk material in accordance with standard methods known to a person skilled in the art. Furthermore, the invention comprises a closure for a bulk material lock, comprising a seat having a circular opening rim and a disc-shaped closing body having a chamfered closing surface, wherein the upper side of the closing body is covered by means of a hood according to the invention. Moreover, the invention also relates to a bulk material lock for a fixed-bed pressure gasification reactor, which is equipped with a closure according to the invention.
Finally, the invention also relates to a method for retrofitting a closure of a bulk material lock, equipped with a disc-shaped closing body having a flat surface, which is character- ized in that the disc-shaped closing body having a flat surface is provided with a hood according to the invention. In this way, already existing bulk material locks can be retrofitted, thus reducing problems with sealing caused by unwanted deposits of bulk material on the flat surface of the disk-shaped closing body. Illustrative embodiments
Developments, advantages and possible uses of the invention will also become apparent from the following description of non-restrictive illustrative embodiments and from the drawings. Here, all the features described and/or depicted in themselves or in any combination form the invention, irrespective of the grouping thereof in the claims or the dependency references thereof.
The invention will be explained below by means of the drawings, in which: Fig. 1 shows a longitudinal section through a closing body according to the invention having a conical hood,
Fig. 2 shows a longitudinal section through a closing body according to the invention having a hood which comprises a conical upper part and a cylindrical lower part,
Fig. 3 shows a longitudinal section through a closing body according to the invention having a hood which comprises a conical upper and lower part with different slope angles of the lateral surface relative to the base surface.
Fig. 1 shows a disc-shaped closing body 1 having a chamfered closing surface 2 and a flat upper side 3. The closing body 1 is connected to a rod 4, by means of which it is held and moved in a vertical direction. The hood 5 completely covers the flat upper side 3 of the closing body 1 , ensuring that no bulk material deposits can form there. The lat- eral surface 6 of the hood 5 forms the angle 7 with the flat upper side 3 of the closing body 1.
Fig. 2 shows a closing body according to Fig. 1 , but equipped with a hood which comprises an upper, conical part 6 and a lower, cylindrical part 8.
Fig. 3 shows a closing body according to Fig. 1 , but equipped with a hood which comprises a conical upper part 6 and lower part 9 with different slope angles of the respective lateral surface relative to the base surface. Industrial applicability
The invention protects the closure of bulk material locks from damage due to trapped bulk material. This increases the service life of the closure and reduces the frequency of stoppages for repairs. The invention thus increases the economy of the reactor and production process associated therewith. The invention can therefore be applied to advan- tage industrially. List of reference signs
1 closing body
2 chamfered closing surface
3 flat upper side of the closing body
4 rod
5 hood
6 lateral surface
7 angle
8 cylindrical part of the hood
9 lower, conical part of the hood

Claims

Patent claims:
1. Hood for covering the upper side of a disc-shaped closing body of a closure of a bulk material lock against deposits of bulk material, wherein the hood is conical and wherein the base surface of the hood has the same size as the upper side of the closing body.
2. Hood according to Claim 1 , characterized in that it is composed of an upper, conical part and a lower, cylindrical or frustoconical part.
3. Hood according to Claim 1 or 2, characterized in that it is configured in such a way that the angle formed between the cone lateral surface thereof and the flat surface of the closing body is greater than or equal to the tipping angle of the bulk material tipped into the bulk material lock.
4. Closure for a bulk material lock, comprising a seat having a circular opening rim and a disc-shaped closing body having a chamfered closing surface, characterized in that the upper side of the closing body is covered by means of a hood according to Claims 1 to 3.
5. Bulk material lock for a fixed-bed pressure gasification reactor, comprising a closure according to Claim 4.
6. Method for retrofitting a closure of a bulk material lock, equipped with a discshaped closing body having a flat surface, characterized in that the disc-shaped closing body having a flat surface is provided with a hood according to Claim 1 to 3.
PCT/EP2017/025236 2016-09-06 2017-08-21 Hood for the closing body of a closure of a bulk material lock WO2018046137A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16400039.0 2016-09-06
EP16400039.0A EP3290492B1 (en) 2016-09-06 2016-09-06 Procedure for retrofitting a closure of a bulk goods port

Publications (1)

Publication Number Publication Date
WO2018046137A1 true WO2018046137A1 (en) 2018-03-15

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ID=57068025

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/025236 WO2018046137A1 (en) 2016-09-06 2017-08-21 Hood for the closing body of a closure of a bulk material lock

Country Status (3)

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EP (1) EP3290492B1 (en)
CN (2) CN207596798U (en)
WO (1) WO2018046137A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3290492B1 (en) * 2016-09-06 2021-11-10 L'air Liquide, Société Anonyme Pour L'Étude Et L'exploitation Des Procédés Georges Claude Procedure for retrofitting a closure of a bulk goods port

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE95855C (en) *
LU45849A1 (en) * 1964-04-10 1964-06-10
GB1140816A (en) * 1967-06-09 1969-01-22 Vnii Pk I Metall Maschino A charging arrangement for a blast furnace
DE1948440A1 (en) * 1969-09-25 1971-04-15 Hoesch Ag Sluice for introducing bulk goods into gas-tight sealed spaces, especially alloying elements in steel degassing vessels
DE3838725A1 (en) * 1987-11-26 1989-06-08 British Steel Plc COOKING OVEN FEEDER
DE4041445A1 (en) 1990-12-21 1992-07-02 Schwarze Pumpe Energiewerke Ag Safety arrangement for coal-charging closure system in pressure gas generator - has bunker shut=off slide plate arranged between upper sealing and lower support ring
US20140191151A1 (en) 2011-07-26 2014-07-10 Sasol Technology (Proprietary) Limited Solids-handling equipment
CN104648855A (en) * 2014-11-06 2015-05-27 扬州伟江机械有限公司 Seal charging valve

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Publication number Priority date Publication date Assignee Title
DE3718428C1 (en) * 1987-06-02 1988-12-15 Brabender Technologie Kg Transport container for bulk material, having an emptying funnel and a conical or plate-shaped shut-off element
CN2716672Y (en) * 2004-08-14 2005-08-10 邓运芳 Bottom bell of blast furnace top filling device
CN201901833U (en) * 2010-12-22 2011-07-20 湘潭公路机械制造有限公司 Pneumatic dual bell jar coal stoker of coal gas generation device for heating asphalt aggregate
DE102014115915A1 (en) * 2014-10-31 2016-05-04 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Sealing system for a container closure
EP3290492B1 (en) * 2016-09-06 2021-11-10 L'air Liquide, Société Anonyme Pour L'Étude Et L'exploitation Des Procédés Georges Claude Procedure for retrofitting a closure of a bulk goods port

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE95855C (en) *
LU45849A1 (en) * 1964-04-10 1964-06-10
GB1140816A (en) * 1967-06-09 1969-01-22 Vnii Pk I Metall Maschino A charging arrangement for a blast furnace
DE1948440A1 (en) * 1969-09-25 1971-04-15 Hoesch Ag Sluice for introducing bulk goods into gas-tight sealed spaces, especially alloying elements in steel degassing vessels
DE3838725A1 (en) * 1987-11-26 1989-06-08 British Steel Plc COOKING OVEN FEEDER
DE4041445A1 (en) 1990-12-21 1992-07-02 Schwarze Pumpe Energiewerke Ag Safety arrangement for coal-charging closure system in pressure gas generator - has bunker shut=off slide plate arranged between upper sealing and lower support ring
US20140191151A1 (en) 2011-07-26 2014-07-10 Sasol Technology (Proprietary) Limited Solids-handling equipment
CN104648855A (en) * 2014-11-06 2015-05-27 扬州伟江机械有限公司 Seal charging valve

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Ullmanns Encyclopedia of Industrial Chemistry", vol. 15, pages: 367 ff
ANONYMOUS: "Custom Metal Spun Hopper Cone Funnels | SS304 & SS316 | TMS", TMS PRODUCT CATALOGUE, 8 May 2016 (2016-05-08), pages 1 - 3, XP055321639, Retrieved from the Internet <URL:https://www.toledometalspinning.com/products/product-catalog/seamless-hopper-cone-funnels> [retrieved on 20161122] *

Also Published As

Publication number Publication date
EP3290492A1 (en) 2018-03-07
CN107794092A (en) 2018-03-13
CN207596798U (en) 2018-07-10
EP3290492B1 (en) 2021-11-10

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